Variable displacement refrigerant compressor of variable angle wobble plate type
US4669272A · kind A · utility
40Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1986 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Jun 17, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2027/1845
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable displacement refrigerant compressor of the variable angle wobble or swash plate type is disclosed. The compressor according to the invention has a displacement control valve which is operable in response to the evaporator pressure so as to restrict the drop thereof by throttling the refrigerant gas flowing through a control port disposed between the evaporator and suction chamber. Crankcase of the compressor is arranged for direct communication with the evaporator so as to keep the crankcase under a pressure which is substantially the same as the evaporator pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.